lm

We could pass it as a new last argument to `url`/`dupeurl` without breaking anything, I think?

Scrollback switched in #150

@drusepth I don't think +h/+o vs -t makes a difference coding-wise; the bot just has to be able to /topic one way or another.

Neat, I didn't even know memoserv was a thing.

Example API output: ``` { symbol: 'AMD', name: 'Advanced Micro Devices, Inc.', exchange: 'NYSE', currentPrice: 10.91, highPrice: 27, lowPrice: 7, meanPrice: 14.64, medianPrice: 14 } ```

Nice, there's even an npm package for that already: https://www.npmjs.com/package/iex-api